<template>
	<view>
		<!-- 使用自定义的搜索组件 -->
		<view class="search-box">
		  <my-search @my-click="gotoSearch"></my-search>
		</view>
		<!-- 首页轮播 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular>
			<swiper-item v-for="item in bannerList" :key="item.goods_id">
				<navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
					<image :src="item.image_src" mode=""></image>
				</navigator>
			</swiper-item>
		</swiper>
		<!-- 分类导航区域 -->
		<view class="nav-list">
			<view class="nav-item" v-for="(item, i) in navList" :key="i" @click="gotoPage(item)">
				<image :src="item.image_src" class="nav-img"></image>
			</view>
		</view>
		<!-- 楼层区域 -->
		<view class="floor-list">
			<!-- 楼层 item 项 -->
			<view class="floor-item" v-for="(item, i) in floorList" :key="i">
				<!-- 楼层标题 -->
				<image :src="item.floor_title.image_src" class="floor-title"></image>
				<!-- 楼层图片区域 -->
				<view class="floor-img-box">
					<!-- 左侧大图片的盒子 -->
					<navigator class="left-img-box" :url="item.product_list[0].url">
						<image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}"
							mode="widthFix"></image>
					</navigator>
					<!-- 右侧 4 个小图片的盒子 -->
					<view class="right-img-box">
						<navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0"
							:url="item2.url">
							<image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
						</navigator>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	import badgeMixin from '../../mixins/badge.js'
	export default {
		data() {
			return {
				bannerList: [],
				navList: [],
				floorList: []
			};
		},
		mixins: [badgeMixin],
		onLoad() {
			this.getSwiperList()
			this.getNavList()
			this.getFloorList()
		},
		methods: {
			async sendResuet(url) {
				const {
					data: res
				} = await uni.$http.get(url)
				if (res.meta.status !== 200) return uni.$showMsg()
				return res.message
			},
			// 获取轮播图数据
			async getSwiperList() {
				const res = await this.sendResuet('/api/public/v1/home/swiperdata')
				res && (this.bannerList = res)
			},
			// 获取分类导航数据
			async getNavList() {
				const res = await this.sendResuet('/api/public/v1/home/catitems')
				res && (this.navList = res)
			},
			// 获取楼层数据
			async getFloorList() {
				const res = await this.sendResuet('/api/public/v1/home/floordata')
				if (!res) return
				// 通过双层 forEach 循环，处理 URL 地址
				res.forEach(floor => {
					floor.product_list.forEach(prod => {
						prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
					})
				})
				this.floorList = res
			},
			// 跳转到某个页面
			gotoPage(item) {
				if (item.open_type === 'switchTab') {
					uni.switchTab({
						// 下面注释的代码原则上才是正确的，但是由于没有对应的页面，所以是直接跳转到 分类 tabbar 下面
						// url: item.navigator_url
						url: '/pages/cate/cate'
					})
				}
			},
			gotoSearch() {
				uni.navigateTo({
					url: '/subpkg/search/search'
				})
			}
		}
	}
</script>

<style lang="scss">
	swiper {
		height: 330rpx;

		.swiper-item,
		image {
			width: 100%;
			height: 100%;
		}
	}

	.nav-list {
		display: flex;
		justify-content: space-around;
		margin: 15px 0;

		.nav-img {
			width: 128rpx;
			height: 140rpx;
		}
	}

	.floor-title {
		height: 60rpx;
		width: 100%;
		display: flex;
	}

	.right-img-box {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-around;
	}

	.floor-img-box {
		display: flex;
		padding-left: 10rpx;
	}
	
	.search-box {
	  // 设置定位效果为“吸顶”
	  position: sticky;
	  // 吸顶的“位置”
	  top: 0;
	  // 提高层级，防止被轮播图覆盖
	  z-index: 999;
	}
</style>